Platform weighing scale



FIG. 1 is a perspective view of the platform weighing scale showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a right side elevational view, the left side being a mirror image thereof. 

The ornamental design for a platform weighing scale, substantially as shown and described. 